atoi error!

[danoc93]

cout<<"\n "<<subexpresionesparentesis[3]<<subexpresionesparentesis[1]<<subexpresionesparentesis[2];

exponenterestado=atoi(subexpresionesparentesis[3]);

cout<<exponenterestado<<"dx"<<subexpresionesparentesis[1];



I get:
C:\Users\Daniel\Documents\Universidad\ProyectosCpp\derivadas\main.cpp|85|error: cannot convert 'std::string' to 'const char*' for argument '1' to 'int atoi(const char*)'|

[Aramil of Elixia]

seeing line 85 would be helpful

[Aramil of Elixia]

i would be careful about posting all of the error line because now I know your name is Daniel and you are (more than likely) spanish and you either are in or work at a university

[danoc93]

line 85 is the exponenterestado=atoi(subexpresionesparentesis[3]);

and there are so many Daniels that are spanish and go to university that I am not worried at all xD!

[o1vk4iN6]

You need to use the c_str() on your string inorder to get a pointer to the actual c-string data.

[danoc93]

where do i use that c_Str, and also do I need a special library? I tried to use it and said that c_Str() was not declared...

[Galik]

Probably:
exponenterestado=atoi(subexpresionesparentesis[3].c_str());

[danoc93]

Galik I love you ^^ thanks.

[Aramil of Elixia]

no, I know that its common, and that in reality revealed only where the file is stored, but just be careful about how much you put out there